Full Stack Engineer Interview Questions

Full Stack Engineer Interview Questions

A full-stack engineer is a technical expert in web and software development. They can handle almost every aspect of development, from servers to systems engineering and databases. During an interview, you can expect both technical questions and questions to determine your interpersonal and communication skills.

Top Full Stack Engineer Interview Questions & How to Answer

Question 1

Question #1: Are you working on anything right now?

How to answer
How to answer: Since more coders are always working on something, the interviewer wants to get an idea of how involved you are in coding. Talk about any projects you are currently working on, whether it's for work or something you are doing on your own time.
Question 2

Question #2: How did you select the tools and technologies for your last project?

How to answer
How to answer: The interviewer wants to get an idea of your experience and how you go about working through a project. Explain the details about the process you followed, talk about why you selected the language you used, and mention what tools and technologies you selected. You can also talk about any problems you faced throughout the development and how you overcame them.
Question 3

Question #3: What are the latest trends in full-stack web development?

How to answer
How to answer: Make sure you are up to date on the latest trends in all kinds of web and software development before your interview. Mention a few of the latest developments you are familiar with and how they might apply to the job. You can also talk about how you learned about the new technology.

19,506 full stack engineer interview questions shared by candidates

Q1: Can you explain the purpose of the dotenv package in this code? A1: dotenv is used to load environment variables from a .env file. It helps keep sensitive information, such as API keys or database connection strings, separate from the codebase. Q2: What is the purpose of the helmet middleware, and why is crossOriginResourcePolicy used here? A2: helmet is a security middleware for Express. crossOriginResourcePolicy helps in setting the Cross-Origin Resource Policy header, enhancing security by controlling how resources can be requested across different origins. Q3: Explain the role of the morgan middleware in this code. A3: morgan is a middleware for logging HTTP requests. In this code, it is configured with the "common" format, which logs the standard Apache common log output. Q4: What is the purpose of the body-parser middleware, and how is it configured in this code? A4: body-parser is used to parse the incoming request bodies in a middleware. In this code, it is configured to handle JSON and URL-encoded data with specified limits.

Full Stack Developer

Interviewed at Techhut

4.7
Jan 7, 2024

Q1: Can you explain the purpose of the dotenv package in this code? A1: dotenv is used to load environment variables from a .env file. It helps keep sensitive information, such as API keys or database connection strings, separate from the codebase. Q2: What is the purpose of the helmet middleware, and why is crossOriginResourcePolicy used here? A2: helmet is a security middleware for Express. crossOriginResourcePolicy helps in setting the Cross-Origin Resource Policy header, enhancing security by controlling how resources can be requested across different origins. Q3: Explain the role of the morgan middleware in this code. A3: morgan is a middleware for logging HTTP requests. In this code, it is configured with the "common" format, which logs the standard Apache common log output. Q4: What is the purpose of the body-parser middleware, and how is it configured in this code? A4: body-parser is used to parse the incoming request bodies in a middleware. In this code, it is configured to handle JSON and URL-encoded data with specified limits.

Round 1: Online assessment contains 2 programming questions. Most of dynamic programming problems. Round 2: Technical interview with CTO for 1 hr. Questions were from previous company projects, our responsibilities in previous project, java technical questions like java 8 features, java concepts. Questions also from Databases, front end technologies, deployment process and production issue handling. Round 3 : Interview with CEO. Discusses about my previous companies and projects. Some basic technical questions and managerial interview questions. Round 4 : Interview with HR. Discussed about the experience of the interview, he explained about the company and culture and Cost to company discussion. Finally I got an offer from Zumen.
avatar

Full Stack Developer

Interviewed at Zumen

4.1
Jul 19, 2021

Round 1: Online assessment contains 2 programming questions. Most of dynamic programming problems. Round 2: Technical interview with CTO for 1 hr. Questions were from previous company projects, our responsibilities in previous project, java technical questions like java 8 features, java concepts. Questions also from Databases, front end technologies, deployment process and production issue handling. Round 3 : Interview with CEO. Discusses about my previous companies and projects. Some basic technical questions and managerial interview questions. Round 4 : Interview with HR. Discussed about the experience of the interview, he explained about the company and culture and Cost to company discussion. Finally I got an offer from Zumen.

Architecture questions, nodejs async/await questions. Home task: Develop a  web app (Front + Back) that gets latest rates for BTC-USD, ETH-USD and LTC-USD from at least 2 sources for each.  The app should get rates every X minutes and store them in a database. The app should have 2 pages:  1. Front page that shows all 3 pairs and their latest average rate 2. A list of historical rates for each pair from each source.   Using: * Docker, docker-compose * Nodejs * Redis / MySQL * React / Vue Bonus Add a shoutbox on the front page (a simple interface for users to write whatever they want) Some sources for crypto rates (you can use others) coinmarketcap.com cryptocompare.com bitstamp.net
avatar

Full Stack Developer

Interviewed at Coinmama

4.6
Apr 11, 2021

Architecture questions, nodejs async/await questions. Home task: Develop a  web app (Front + Back) that gets latest rates for BTC-USD, ETH-USD and LTC-USD from at least 2 sources for each.  The app should get rates every X minutes and store them in a database. The app should have 2 pages:  1. Front page that shows all 3 pairs and their latest average rate 2. A list of historical rates for each pair from each source.   Using: * Docker, docker-compose * Nodejs * Redis / MySQL * React / Vue Bonus Add a shoutbox on the front page (a simple interface for users to write whatever they want) Some sources for crypto rates (you can use others) coinmarketcap.com cryptocompare.com bitstamp.net

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